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<h2>Discussion</h2>
This is a concrete subclass of NKDBarcode that implements the common Code 3 of 9
barcode using a 2:1 wide to narrow ratio for bars and defaults to a
12 mil bar width. Code 3 of 9 supports bars as narrow as 7.5 mils, but on many
printers, due to ink bleed or toner jitter, 7.5 creates an un-scannable barcode
 <hr><br><p>(Last Updated 4/21/2003)
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